This could be the part of him being delusional that was spoiled on me because of the "muh 12 minutes needle mystery writing" @_@ and also... the reason they came here was said to be "something happened that led them here"... could they have come here to try and give their son a normal life even though he is this mentally ill? @_@ and his mental illness... i don't think it start from the beginning of each chapter but at some point... like here? it was when he got broken by Satoko's crying... chapter 1? after the cool detective started telling him to be sus about the girls... chapter 2?... i got no idea really @_@ it could be at the very ending... hmmm @_@